i've Got a preaty interesting question:
Hooking up a usb disk to Your operwrt router is quite obviose…BUT
is it possible to
connect ones router to and another device (fe. media center, hi fi or simply a pc) throug USB, so that 'other' device sees it as a mass storage disk, sharing the root direcotry or simply the contents of connected hard drive.

Toastman, with all due respect… this adaptor can be easly made at home ;)

Correct me if i'm wrong but the whole idea of open routers and aternative software was to make those devices as versitale as posiible - and my questing showed clearly that there are still ways to make it even more feature-full